Software Estimation Without Guessing Effective Planning in an Imperfect World
Software Estimation Without Guessing Effective Planning in an Imperfect World by George Dinwiddie, published by Pragmatic Bookshelf on January 3, 2020, offers insights into the complexities of estimating software development. This 248-page book addresses the challenges that both developers and managers face regarding estimation, emphasizing the importance of understanding the underlying needs behind estimate requests. Dinwiddie presents various techniques for making informed estimates while minimizing costs and effort, and he highlights the necessity of adjusting plans when initial estimates prove inaccurate.
Readers will find practical strategies for effective estimation, including methods for modeling work mathematically and comparing past experiences. The book discusses how to communicate estimates productively, aiming to enhance organizational outcomes while reducing potential frustrations. By addressing both technical and sociological aspects of estimation, this edition provides a comprehensive approach to navigating the estimation process, ultimately helping organizations achieve their goals with greater efficiency.
Official synopsis Publisher
Estimating software development often produces more angst than value, but it doesn’t have to. Identify the needs behind estimate requests and determine how to meet those needs simply and easily. Choose estimation techniques based on current needs and available information, gaining benefit while reducing cost and effort. Detect bad assumptions that might sink your project if you don’t adjust your plans. Discover what to do when an estimate is wrong, how to recover, and how to use that knowledge for future planning. Learn to communicate about estimates in a healthy and productive way, maximizing advantage to the organization and minimizing damage to the people.
In a world where most developers hate estimation and most managers fear disappointment with the results, there is hope for both. It requires giving up some widely held misconceptions. Let go of the notion that “an estimate is an estimate” and estimate for the particular need you, and your organization, have. Realize that estimates have a limited shelf-life, and reestimate frequently if it’s important. When reality differs from your estimate, don’t lament; mine that disappointment for the gold that can be the longer-term jackpot.
Estimate in comparison to past experience, by modeling the work mathematically, or a hybrid of both. Learn strategies for effective decomposition of work and aspects of the work that likely affect your estimates. Hedge your bets by comparing the results of different approaches. Find out what to do when an estimate proves wrong. And they will. They’re estimates, after all. You’ll discover that you can use estimates to warn you of danger so you can take appropriate action in time. Learn some crucial techniques to understand and communicate with those who need to understand.
Address both the technical and sociological aspects of estimation, and you’ll help your organization achieve its desired goals with less drama and more benefit.
What You Need:
No software needed, just your past experience and concern for the outcomes.
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